[PATCH] console: fix usbserial re-connect

[Sascha Hauer]

On Sun, Mar 26, 2017 at 05:17:47PM +0200, Alexander Kurz wrote:
> With commit b4f55fcf355a ("console: expose consoles in devfs") consoles
> got inserted, but never removed from devfs.
> When dealing with USB consoles, barebox should be prepared for devices
> spontaneously appering and disappering again (user disconnects and re-
> connects the cable). If the devfs entry is not removed upon disconnect,
> barebox will raise an error "device creation failed with File exists"
> when the cable is connected again.
> 
> Remove devfs entries when consoles are de-registered.
> Also change the error message, it's the devfs entry.
> 
> Signed-off-by: Alexander Kurz <akurz at blala.de>
> ---
>  common/console.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Also applied to master, thanks

Sascha

> 
> diff --git a/common/console.c b/common/console.c
> index 4127e76..74fb684 100644
> --- a/common/console.c
> +++ b/common/console.c
> @@ -375,7 +375,7 @@ int console_register(struct console_device *newcdev)
>  	ret = devfs_create(&newcdev->devfs);
>  
>  	if (ret) {
> -		pr_err("device creation failed with %s\n", strerror(-ret));
> +		pr_err("devfs entry creation failed: %s\n", strerror(-ret));
>  		return ret;
>  	}
>  
> @@ -388,6 +388,8 @@ int console_unregister(struct console_device *cdev)
>  	struct device_d *dev = &cdev->class_dev;
>  	int status;
>  
> +	devfs_remove(&cdev->devfs);
> +
>  	list_del(&cdev->list);
>  	if (list_empty(&console_list))
>  		initialized = CONSOLE_UNINITIALIZED;
> -- 
> 2.1.4
> 
> 
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> 

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